A fibo is short for fibonacci, a math concept frequently used by a
daytrader or
chartist to identify whether the price of a stock or crypto is set to rise or fall.
In practice, the chartist is almost always wrong is about to get
riggity riggity wrecked.
Guy in 2018: "Bro,
Bitcoin is set to hit $100,000 before the end of year. Trust me, I
checked the fibos and fibos never lie.
(The price of Bitcoin proceeds to go under $
4,000 and the guy never financially recovers ever again.)